A Revision of the Genus Synthocus. 117 



central area is evidently larger than the lateral ones, and the 

 shoulders are roundly dilated. Described from a single example. 



12. Brotheus flexuosus, sp. nov. 

 Plate VI., fig. 15. 



Long. 3i-li ; lat. 2f-3f mm. 



Colour entirely dull black, the carinas on the elytra edged with 

 grey scaling ; setae inconspicuous. 



Head with two oblique furrows uniting on the vertex. Prothorax 

 scarcely broader than long, sides slightly rounded, broadest near 

 base and narrowed towards apex, the basal margin rounded ; upper 

 surface convex, with three broad deep continuous furrows, the outer 

 ones converging strongly towards the apex, the intervals broadly 

 costate, smooth and with small sparse punctures ; no apical impres- 

 sion; the sides smooth with scattered shallow punctures. Elytra 

 very short, distinctly broader than long, the basal margin sinuate 

 and scarcely broader than the base of the prothorax, the humeral 

 slope almost at right angles to the suture, the shoulders roundly 

 dilated, the sides slightly narrowed posteriorly ; the declivity is 

 extremely abrupt and forms a depressed pentagon, being bordered 

 on all sides by an elevated transverse carina, which is sinuated 

 towards the base where it crosses the suture at the top of the 

 declivity ; upper surface with an elevated inwardly curved carina 

 running from near the shoulder and meeting the posterior carina 

 about midway between the suture and the dorsal margin, which is 

 itself strongly carinate ; there is also on each side a short basal carina 

 which runs obliquely to meet the dorsal carina ; the upper surface 

 is thus divided into three strongly depressed areas, of which the 

 middle one is much the largest and pentagonal in shape ; these areas 

 are quite smooth with only a few faint, more or less irregular 

 punctures. Legs with thin grey scaling and dark setae ; inner angle 

 of tibiae with a short straight spine ; tarsi rather long and stout. 



Cape Colony {Sir Andreio Smith). 



Type in the British Museum. 



A very distinct species, owing to its deeply furrowed thorax and 

 the peculiar carination of the elytra. I have seen three examples, 

 all of which are in the British Museum. 



EUEYXBNA, Pasc. 



Euryxena, Pasc, Trans. Ent. Soc. Bond., 1887, p. 337— Type 

 bruchoides, Pasc. 



This genus is very closely allied to Brotheus, Steph., with which 



